... material:bearing steel,GCR15 hardness:59-63HRC 16001 2rs low noise deep groove ball bearing detail description:1) ... , ABEC-3, ABEC-5, ABEC-7. 7) Brand: KMY, We also have ability to produce your own ... brand or other famous brand (SKF, NSK, HCH, KG, KOYO brand, etc.) 3. The company ... establish friendly relations of cooperation. 16001 2rs low noise deep groove ball bearing